Slide



April 9,1929. A. c. ECKERT ET AL SLIDE Filed May 24, 1928 Patented Apr. 9, 1929.

UNITED STATES PATENT OFFICE.

ALFRED G. EGKERT, 0F PELHAM, AND GEORGE E. BRECHT, 0F RICHMONDHILL, NEW YORK.

SLIDE. I

This invention is a slide so constituted as to be adapted for efficient employment in connection, lnore particularly, with cord bracelets used to support wrist watches in position on a wearer although not necessarily expressly limited to this particular environment.

The primary object of the invention is to provide a simple, novel and efficient construction which will permit of manual adjustment of the slide longitudinally of the cord, but which will normally serve to effectually preclude slipping of the slide with respect to the cord and vice versa.

In one of its preferred, practical forms,

the slide of this invention embodies two' tubes. hese tubes are positioned side by side and preferably in parallel relation to one another. They may be made separate and secured to one another, but, in the preferred form, one half of one of the tubes is made integral with the other tube by being formed therewith in suitable dies.

One of the tubes is rigid and in this tube one end of the cord is adapted to be permanently anchored. The other tubev is made in two semicylindrical sections which are hinged together along the lateral edge of the slide and the free edge of the pivoted section is extended to overlie and conform to the rigid tube of the assembly, a suitable clasp being provided on the extended part and on the rigid tube, so that when the pivoted part is in closed position, the clasp will serve to lock such part against inadvertent opening. An intermediate portion of the length of the cord is adapted to extend through the nonrigid tube and on the inner periphery of said latter tube is formed inwardly extending circumferential. ribs which distort thecord and cause it to be offset or diverted from a straight path in order to preclude inadvertent slipping of the cord through the slide when the catchmembers of the respective parts are in engagement with one another.

It is convenient in practice to make the slide in two parts. WVhen thus constructed, the sections of the split tube through which the cord is adapted to be passed are hinged together at their corresponding edges, while one section-of the split'tube is extended to form the closed or rigid tube, the other section of the split tube being extended to form an attaching member adapted to engage with a suitable clasp associated withthe rigid tube.

The ribs which offset the cord may be convenlently formed during the stamping operation.

An important feature of the invention consists 1n the novel manner of securing one end of the cord to the slide. The securing of the cord to the slide constitutes a problem in the manufacture of cord bracelets and the like because the formation of the knot-s and similar attaching adjuncts are bulky and unsightly.

lVe have in prior constructions anchored the cord to the slide by means of a pin passed through the cord or by securing the cord in position adhesively as by the use of shellac. Neither of these arrangements is, however, entirely satisfactory. In accordance with the present invention, the cord is made with a wire core or with a wire passing longitudinally through the center of the core so as to be wholly concealed within the cord. This wire is relatively light and flexible and does not interfere with the opening of the cord. However, it keeps the cord from stretching and enables us to make cords lighter than heretofore. Furthermore, the presence of the wire in the cord solves the problem of anchor ing the ends of the cord, because a portion of the wire may be left extending beyond the end of the cord to be anchored and this extending portion of the wire may be twisted about a pin or may be soldered in place so as to greatly facilitate the change of the cord when it is worn out.

The whole structure of the slide is extremely simple and it constitutes a marked improvement upon prior devices.

Features of the invention, other than those adverted to, will be apparent from the hereinafter detailed description and claims, when read in conjunction with the accompanying drawing.

The accompanying drawing illustrates one practical embodiment of the invention, but the construction therein shown is to be understood as illustrative, only, and not as defining the limits of the invention.

Figure 1 shows a perspective view of a slide embodying the present invention with the parts so arranged as to release the intermediate portion of the cord for adjustment.

Figure 2 is a central transverse section of the slide with the parts in closed position.

Figure 3 is a longitudinal section through the rigid tube of the slide.

. Referring to the drawings, 1 and 1 des- Both of these halves or sections are semlcylindrlcal and each *is formed along one of its free edges with hinged members adapted collectively to form a hinge 2 through which a pin 3 is passed. The free edge of the section 1 is extended and curled back upon itself to form r a closed tube 4 which is, in practice, substantially rigid. The corresponding edgeof the section 1" is extended to form a semicylmdrical extension 5, which, when the sections 1 and l are incilosed relation to one another, is adapted to tit over and conform to the tube 4. The tube 6; carriesa knob 6 and a hole 7 is drilled in the extension 5 so that when the parts arein closed position, the knob or stud 6 extends through the hole 7 and secures the parts against inadvertent opening.

During the formation of the respective parts oithe slide, said parts are preferably manipulated by appropriate dies to form on the interior of the sections 1 and 1 circumferentially disposed inwardly projecting ribs 8 and 9, respectively. The ribs on one section are staggered with respect to the ribs on the other section so that they, in eilect, overlap when the split tube sections'are in closed relation to one another.

The cord with which. the slide is adapted to cooperate is designated generally by the referenoe character 10. This cord may be of any suitable material common tothe art, but diifers from the conventional cordin that it is providcdwith a wire core 11 which extends throughout the length of the cord and is incorporated therein during the manufacture of the cord. l/Vhen associating the slide of this invention with a cord such as described, a portion of the end of the cord is cut away to expose a part of the wire core and the free end of the cord thus prepared is introduced into the tube and the end of the wire secured within the tube in any suitable manner. Solder'may be employed in this connection, but we find it convenient 'toprovide within the tube i a pin '12 about which the wire ll'may be twisted after the manner shown in Figure 3. This arrangement is highly practical and advantageous for many reasons among which may be mentioned the iact'that'in the event of wearing of the cord,

the wire may be readily untwisted and a new cord associated with the slides without necessitatmg the removal of the pm 12 as has heretofore been necessary'in those slides of which we are advised.

Another advantage inherent in the use of the wire in the cord is that the cord may be made relatively light as the wire will effectually preclude stretching ofthe cord and will impart added strength thereto.

Under normal use, an intermediate portion of the cord is adapted to extend through extension 0 the split tube 1 after the manner shown in dotted lines in Figures land 2; When the is disengaged from the stud 6, this intermediate portionoi the cord is adapted to be drawn freelythroughthe split tube in order that the desired adjustment oi the bracelet may be obtained.

/Vhen the cord is in proper adjustment, however, theparts are shifted from the open position shown in Fig. 1 to the closed position exhibited in Figure 2.1"roin which it will be apparent that the ribs 8 and 9 will distort the cord sufficiently to preclude inadvertent sliding movement thereof relative to the slide and vice versa.

The structure which we have described is extremely simple and economical to manufacture. It is furthermore extremely eiiicient for the performance of its intended functions and is of minimum size and neat in appearance. The structure, moreover, readily lends itself to ornamentation as an article of jewelry as the exposed surfaces of the parts 1 and 5 may serve as a mounting for precious stones and other ornamentations.

The accompanying drawing shows the invention in its preferred practical term, but

he invention is to be understood as fully commensurate with the appended claims.

Having thus fully described the invention, what we claim as new and desire to secure by Letters Patent is;

1. A cord slide embodying a pair of tubes, one of which is circumferentially substantially closed, and the other of which is longitudinally split and the parts'hinged together, one part of the split tube being rigid with the closed tube, and means for normally securing the respective parts of the split tube in relatively closed position.

2. A cord slide embodying a pair of tubes, one of which is circumferentially substantially closed, and the other of which is longitudinally split and the parts hinged together, one part of the split tube being rigid with the closed tube, and the free edge of the other part of thesplit tube being extended to overlie and conform to the closed tube, and means formed conjointly on the closed tube and the said extension to secure the split tube innormally closed position. I r

3. A cord slide embodying a tube longitudinally split into two sections hinged together and adapted to embrace an intermediate portion of the length ofa cord, the free edge of one of said sections being extended and curled upon itself to form a closed tube in which one end of the cord is adapted to be anchored and the free edge of the other of saidsections being extended to form aclasp tudinally split into two sections hinged together and adapted to embrace an intermediate portion of the length of a cord, the free edge of one of said sections being extended and curled upon itself to form a closed tube in which one end of the cord is adapted to be anchored and the free edge of the other of said sections being extended to form a clasp adapted to maintain the two sections of the split tube in position to grip the intermediate portion of the cord, and inwardly extending projections formed on the interior of each of the sections of the split tube and adapted to distort the cord and increase friction to preclude inadvertent slippage between the parts.

5. A cord slide embodying a tube longitudinally split into two sections hinged together and adapted to embrace an intermediate portion of the length of a cord, the free edge of one of said sections being extended and curled upon itself to form a closed tube provided therein with an anchorage for one end of the cord, and the free edge of the other of said sections being extended to overlie and conform to a portion of the surface of the closed tube, said extension being perforated, means to removably secure the extension to the closed tube, and means projecting inwardly from the inner surface of the sections of the split tube to engage the cord and grip the same.

6. A cord slide embodying a tube longitudinally split into two sections hinged together and adapted to embrace an intermediate portion of the length of a cord, the free edge of one of said sections being extended and curled upon itself to form a closed tube provided therein with an anchorage for one end of the cord, and the free edge of the other of said sections being extended to overlie and conform to a portion of the surface of the closed tube, said extension being perforated, means to removably secure the extension to the closed tube, and means projecting inwardly from the inner surface of the sections of the split tube to engage the cord and grip the same, in combination with a cord provided with a metal core, an intermediate portion of the length of the cord extending through the split tube and the free end of the cord extending into the closed tube with the metal core of the cord secured to the anchorage in the latter tube.

In testimony whereof we have signed the foregoing specification.

ALFRED C. ECKERT. GEORGE F. BRECHT. 

